It comes with a threaded ball that stays fitted onto the axle through the thread itself and an eccentric pin. To disassemble the ball it only must be twisted and extract the eccentric so that later unscrew the ball anti-clockwise. The manufacturing system used makes impossible to exchange the ball with another axle that is not the original supplied.

Advantages of the detachable system:

It gets disassembled in seconds with no need of tools

Double security system(thread and pin)

It disappears from the rear of the vehicle thus avoiding wounds in the legs, grease stains and damages in other cars